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Coal-based fully-synthetic SN-grade lubricating oil and preparation method thereof

A fully synthetic, lubricating oil technology, applied in the field of lubricating oil, can solve the problem of high production cost, and achieve the effects of reduced production cost, high oil film thickness and good lubrication effect

Active Publication Date: 2020-06-05
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the production cost of SN-grade gasoline engine oil is relatively high as vehicle lubricating oil, the present invention provides a kind of coal-based fully synthetic SN (5W-30) lubricating oil Oil and preparation method thereof, using coal-based Fischer-Tropsch synthetic oil as base oil, preparing qualified coal-based SN grade (5W-30) lubricating oil by adding appropriate amount of additives

Method used

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  • Coal-based fully-synthetic SN-grade lubricating oil and preparation method thereof
  • Coal-based fully-synthetic SN-grade lubricating oil and preparation method thereof
  • Coal-based fully-synthetic SN-grade lubricating oil and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] First, prepare the gasoline engine oil compound according to the following formula:

[0039]

[0040] Add functional additives into a three-necked flask according to the above proportions, heat to 60° C. and stir for 1.5 hours, and ultrasonically oscillate for 30 minutes to obtain a gasoline engine oil compounding agent.

[0041] Weigh 50g of 1# coal-based base oil and 35g of 2# coal-based base oil into a three-necked flask, raise the temperature to 50°C, and keep the temperature constant for 1h. Continue to add gasoline engine oil compounding agent 7.48g, pour point depressant (PMA: 0.1g; polyalphaolefin: 0.4g), viscosity index improver (hydrogenated styrene 7g), composite antifoaming agent (polyacrylate 0.02g). Stir at constant temperature for 2 hours under the condition of 300r / min, and finally obtain 1# product oil after ultrasonic oscillation for 30 minutes. The basic physical and chemical properties of the obtained lubricating oil were tested and analyzed, and...

Embodiment 2

[0046] First, prepare the gasoline engine oil compound according to the following formula:

[0047]

[0048] Add functional additives into a three-necked flask according to the above proportions, heat to 60° C. and stir for 1.5 hours, and ultrasonically oscillate for 30 minutes to obtain a gasoline engine oil compounding agent.

[0049]Weigh 55g of 1# coal-based base oil and 28g of 2# coal-based base oil into a three-necked flask, raise the temperature to 50°C, and keep the temperature constant for 1h. Continue to add gasoline engine oil compounding agent 8.38g, pour point depressant (PMA: 0.2g; polyalphaolefin: 0.4g), viscosity index improver (hydrogenated styrene 8g), composite antifoaming agent (polyacrylate 0.02g). Stir at constant temperature for 2 hours under the condition of 300r / min, and finally obtain 2# product oil after ultrasonic oscillation for 30 minutes. The basic physical and chemical properties of the obtained lubricating oil were tested and analyzed, and ...

Embodiment 3

[0054] First, prepare the gasoline engine oil compound according to the following formula:

[0055]

[0056]

[0057] Add functional additives into a three-necked flask according to the above proportions, heat to 60° C. and stir for 1.5 hours, and ultrasonically oscillate for 30 minutes to obtain a gasoline engine oil compounding agent.

[0058] Weigh 50g of 1# coal-based base oil and 30g of 2# coal-based base oil into a three-necked flask, raise the temperature to 50°C, and keep the temperature constant for 1h. Continue to add compounding agent 9.58g, pour point depressant (PMA: 0.1g; polyalphaolefin: 0.3g), viscosity index improver (hydrogenated styrene 10g), composite antifoaming agent (polyacrylate 0.02g). Stir at a constant temperature for 2 hours under the condition of 300r / min, and finally obtain 3# product oil after ultrasonic oscillation for 30 minutes. The basic physical and chemical properties of the obtained lubricating oil were detected and analyzed, and th...

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Abstract

The invention relates to the field of lubricating oil, and provides coal-based fully-synthetic SN-grade lubricating oil and a preparation method thereof. The lubricating oil solves the problem that atraditional method for improving the performance of lubricating oil through cooperation of petroleum-based base oil and an additive cannot meet requirements. The coal-based fully-synthetic SN-grade lubricating oil comprises the following components in percentage by weight: 40-55wt% of 1# coal-based base oil, 25-40wt% of 2# coal-based base oil, 7-10wt% of a gasoline engine oil complexing agent, 0.3-0.8 wt% of a pour point depressant, 6-10wt% of a viscosity index improver and 0.02 wt% of a composite anti-foaming agent, the preparation method comprises the steps of compounding agent preparation,base oil blending and lubricating oil preparation. The obtained product lubricating oil has excellent low-temperature performance and antioxidant and anti-wear performance, has longer service life compared with existing fully synthetic lubricating oil of the same grade, and shows better fuel economy.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a coal-based fully synthetic SN (5W-30) grade lubricating oil and a preparation method thereof. Background technique [0002] As the number of automobiles in my country increases year by year, the market demand for lubricating oil also shows an increasing trend. At present, due to the rapid development of engine technology and the growing demand for environmental protection, higher fuel standards have been proposed around the world. (2) improve the service life of lubricating oil, meet the requirements of energy saving, and develop towards the direction of multi-grade oil; (3) improve the performance requirements of lubricating oil such as high temperature resistance to oxidation, low temperature performance, and detergency, and move towards high-quality lubricating oil (4) Reduce the content of phosphorus and sulfur in lubricating oil, and develop towards the direction of environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M177/00C10N30/02C10N30/10C10N30/08C10N30/06C10N40/25C10N10/04C10N10/12C10N10/02
CPCC10M169/044C10M177/00C10M2205/173C10M2219/046C10M2215/086C10M2207/282C10M2201/041C10M2219/022C10M2219/066C10M2201/087C10M2207/284C10M2215/064C10M2209/084C10M2205/02C10M2205/04C10M2205/06
Inventor 韩伟杜宗罡冯弦吴华赵利华兰海平符全军
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST
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